size is very accurate in US sizing. Has just enough room for heavier socks for colder weather riding. The lower height is great for ADV riders who are in the 60/40 category. (60% road / 40% off-road) much better to have waterproof riding boots instead of rain gear over-boosts which are bulky and more trouble than they are worth. only down side is I wish there was slightly more arch support. Super sturdy for standing on pegs.